A STUDY OF THE CORROSION PROPERTIES OF TIN-COATED AND NITRIDED TI-6A1-4V


YILBAS B., SAHIN A. Z., AHMAD Z., ALEEM B.

CORROSION SCIENCE, vol.37, no.10, pp.1627-1636, 1995 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 10
  • Publication Date: 1995
  • Doi Number: 10.1016/0010-938x(95)00065-r
  • Journal Name: CORROSION SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1627-1636
  • Istanbul Technical University Affiliated: Yes

Abstract

TiN PVD coating and plasma nitriding are two well-known techniques for improving tribological properties of treated samples. The study examines the corrosion resistance of plasma nitrided and TiN coated Ti-6Al-4V samples. The potentiodynamic polarization technique was used to measure the corrosion rate and corrosion resistance of the substrates. A micro PIXE technique was employed to determine the nitrided zone depth profile. SEM was carried out to investigate the pitting defects. To achieve a comparative study, TiN coated, nitrided and untreated samples were examined. It was found that TiN coating improves the corrosion properties, but nitriding worsens the corrosion resistance of the substrate.